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William L Thompson School
School pathway
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 61 of every 100 students at this school read and write at grade level and about 36 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 18 points since 2023, while math scores are up about 12 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 49% of students here test proficient in math and reading, compared with the roughly 53% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About William L Thompson School
William L Thompson School, a middle-of-the-pack elementary campus in Lake Villa, Illinois, part of Lake Villa CCSD 41, enrolls 488 students, covering grades pre-K through 5. Compared to the state average of about 381 students per school, that is 28% larger than typical.
Across the 4 schools in Lake Villa CCSD 41 (2,388 students total), William L Thompson School accounts for its share of the district's footprint.
In terms of who attends, William L Thompson School reports that the most-represented group is White (45%), with the rest of the student body spread across multiple groups. The remainder comes out to 34% Hispanic, 13% multiracial, 5% Asian, 3% Black. The wider county runs roughly 61% White, putting the school's mix noticeably less White than the area baseline.
Looking at school resources, On paper, William L Thompson School has 35 full-time-equivalent teachers, translating to a class-load average of around 13.8:1. That tracks the state average closely. An estimated 32% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. By comparison, Lake County runs at roughly 54%, so the school's eligibility rate is below the surrounding baseline.
On a residual basis (actual vs predicted given the student mix), William L Thompson School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 53.2%, the actual is 48.8%, a residual of -4.4 points.
Around the school, Lake County reports that median household income runs about $110,416, roughly 48% of adults have completed at least a four-year degree, and the poverty rate sits near 6%. William L Thompson School is one of 214 public schools in Lake County (combined enrollment of about 118,032 students).
Nearest neighbor: Peter J Palombi School, around 1.0 miles off. Within five miles, there are 8 other public schools. On composite proficiency, William L Thompson School comes 1st of 7 in the immediate cluster, higher than the nearby-schools average of 28.1%.
Geographically, the school is in a bedroom-community area.
Trend over the last 7 years. Over the past 7-year window, the student count decreased 20%: 609 students in 2018 compared to 488 in 2025. Over the same period, the White share declined from 65% to 45%. Class-load math has tightened: from 16.9:1 in 2018 to 13.8:1 in 2025.
Within the allk12 community for this school, the page collects discussion, questions, and updates around science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.
Lake County at a glance
View full county profileQuick facts
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